Bug #64267 MySQL Workbench Crash

Description:
When performing a database export/import the Workbench may throw an error and crash. This has occurred with at least two versions. In previous version of Workbench the crash appears to be intermittent as I could still perform operations before the crash. In the present version of Workbench I am seeing crashes prior to my ability to perform any functions.

How to repeat:
Connect to a DB using Server Administration
Select Data Export
Choose a DB
Choose Export to Self-Contained File (if not already selected)
Click on ... to choose a file location and name
Save As box is displayed and immediately get an error:
  "MySQL Workbench Unexpected Error"
    MySQL Workbench has encountered a problem
    The path is not of a legal form

Stack trace:

Exception = System.ArgumentException
Message = The path is not of a legal form.
FullText = System.ArgumentException: The path is not of a legal form.
   at System.IO.Path.NormalizePath(String path, Boolean fullCheck, Int32 maxPathLength)
   at System.IO.Path.GetFullPathInternal(String path)
   at System.IO.Path.GetFullPath(String path)
   at System.Drawing.IntSecurity.UnsafeGetFullPath(String fileName)
   at System.Drawing.IntSecurity.DemandReadFileIO(String fileName)
   at System.Drawing.Bitmap..ctor(String filename)
   at MySQL.Forms.TreeViewImpl.TreeValueNeeded(Object sender, NodeControlValueEventArgs e)
   at Aga.Controls.Tree.NodeControls.BindableControl.OnValueNeeded(NodeControlValueEventArgs args)
   at Aga.Controls.Tree.NodeControls.BindableControl.GetValue(TreeNodeAdv node)
   at Aga.Controls.Tree.NodeControls.NodeIcon.GetIcon(TreeNodeAdv node)
   at Aga.Controls.Tree.NodeControls.NodeIcon.MeasureSize(TreeNodeAdv node, DrawContext context)
   at Aga.Controls.Tree.NodeControls.NodeControl.GetActualSize(TreeNodeAdv node, DrawContext context)
   at Aga.Controls.Tree.TreeViewAdv.<GetNodeControls>d__7.MoveNext()
   at Aga.Controls.Tree.TreeViewAdv.<GetNodeControls>d__0.MoveNext()
   at Aga.Controls.Tree.TreeViewAdv.DrawNode(TreeNodeAdv node, DrawContext context)
   at Aga.Controls.Tree.TreeViewAdv.DrawRow(PaintEventArgs e, DrawContext& context, Int32 row, Rectangle rowRect)
   at Aga.Controls.Tree.TreeViewAdv.OnPaint(PaintEventArgs e)
   at System.Windows.Forms.Control.PaintWithErrorHandling(PaintEventArgs e, Int16 layer)
   at System.Windows.Forms.Control.WmPaint(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

I noticed that I am using UNC paths on all import/export locations. I am attempting to change them to all point to a local disk/directory to see if it helps:

On my system I am defaulted to a UNC ( \\server\path\file ) which may be driven by my OS configuration and not MySQL Workbench. If I type in the path manually and don't touch the "..." I can perform operations with no crash. Between Workbench executions the path is saved but if I click on the "..." all paths are reset to the UNC values and the crash occurs.

I'll keep testing and updating on my findings

Verified on Windows XP. I've just typed \\localhost\ before the usual c:\... filename generated by Workbench and clicked on "..." button. Got the same stack trace:

Exception = System.ArgumentException
Message = The path is not of a legal form.
FullText = System.ArgumentException: The path is not of a legal form.
   at System.IO.Path.NormalizePath(String path, Boolean fullCheck, Int32 maxPathLength)
   at System.IO.Path.GetFullPathInternal(String path)
   at System.IO.Path.GetFullPath(String path)
   at System.Drawing.IntSecurity.UnsafeGetFullPath(String fileName)
   at System.Drawing.IntSecurity.DemandReadFileIO(String fileName)
   at System.Drawing.Bitmap..ctor(String filename)
   at MySQL.Forms.TreeViewImpl.TreeValueNeeded(Object sender, NodeControlValueEventArgs e)
   at Aga.Controls.Tree.NodeControls.BindableControl.OnValueNeeded(NodeControlValueEventArgs args)
   at Aga.Controls.Tree.NodeControls.BindableControl.GetValue(TreeNodeAdv node)
   at Aga.Controls.Tree.NodeControls.NodeIcon.GetIcon(TreeNodeAdv node)
   at Aga.Controls.Tree.NodeControls.NodeIcon.MeasureSize(TreeNodeAdv node, DrawContext context)
   at Aga.Controls.Tree.NodeControls.NodeControl.GetActualSize(TreeNodeAdv node, DrawContext context)
   at Aga.Controls.Tree.TreeViewAdv.<GetNodeControls>d__7.MoveNext()
   at Aga.Controls.Tree.TreeViewAdv.<GetNodeControls>d__0.MoveNext()
   at Aga.Controls.Tree.TreeViewAdv.DrawNode(TreeNodeAdv node, DrawContext context)
   at Aga.Controls.Tree.TreeViewAdv.DrawRow(PaintEventArgs e, DrawContext& context, Int32 row, Rectangle rowRect)
   at Aga.Controls.Tree.TreeViewAdv.OnPaint(PaintEventArgs e)
   at System.Windows.Forms.Control.PaintWithErrorHandling(PaintEventArgs e, Int16 layer)
   at System.Windows.Forms.Control.WmPaint(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

This is a bug. Workbench should not crash no matter what kind of URI (even incorrect) is given.

Bug #64801 was marked as a duplicate of this one.

Bug #64828 was marked as a duplicate of this one.

Bug #64971 was marked as a duplicate of this one.

Bug #64985 was marked as a duplicate of this one.

Bug #64995 was marked as a duplicate of this one.

Bug #65075 was marked as a duplicate of this one.

Bug #65102 was marked as a duplicate of this bug.

Bug #65145 was marked as a duplicate of this one.

Bug #65415 was marked as a duplicate of this one.

Bug #65566 was marked as a duplicate of this one.

Fixed as of Workbench 5.2.40, and here's the changelog entry:

On Microsoft Windows XP, performing a database export could
cause MySQL Workbench to crash while using the "Export to
Self-Contained File" option with a "UNC" path.